The SONOFF Zigbee 3.0 USB Dongle Plus P is not recognized

Configuration
1

Hello,

I’m having difficulty installing Gladys Assistant.

The equipment includes:

1 Pi4 OS bookworm

1 Sonoff Zigbee 3.0 USB Dongle Plus P (Ti CC2652)

1 4-relay case MHCOZY TYWB 4ch-RF

2 Sonoff SNZB-02D sensors

The installation is entirely new on an SD card with Docker for MQTT and ZigBee

Until now I used MQTT directly with Zigbee2mqtt and Apache + MySQL to control the heating (day/night and presence/absence), plus other processes with this hardware.

I chose the Gladys Assistant interface because it does not rely on a third-party service.

Configuration in Gladys:

- USB port (the only one offered): /dev/ttyUSB0 – Itead - 10c4

- dongle: SONOFF Zigbee 3.0 USB Dongle Plus ZBDongle-P

- TCP port: 12000

The Gladys, MQTT and ZigBee2MQTT services are running and their connection is green

The web page :12000 displays the error: Connection failed

My problem is that the dongle is not recognized by zigbee2mqtt with Gladys.

sudo docker logs gladys-z2m-zigbee2mqtt

Starting Zigbee2MQTT without watchdog.

[2025-10-27 17:05:02] info: z2m: Logging to console, file (filename: log.log)

[2025-10-27 17:05:02] info: z2m: Starting Zigbee2MQTT version 2.6.1 (commit #e9889e5d20e8911550d5231bc0349567cc2bb9ce)

[2025-10-27 17:05:02] info: z2m: Starting zigbee-herdsman (6.0.4)

[2025-10-27 17:05:03] info: zh:zstack:znp: Opening SerialPort with {« path »:« /dev/ttyUSB0 »,« baudRate »:115200,« rtscts »:false,« autoOpen »:false}

[2025-10-27 17:05:03] error: z2m: Error while starting zigbee-herdsman

[2025-10-27 17:05:03] error: z2m: Failed to start zigbee-herdsman

[2025-10-27 17:05:03] error: z2m: Check Zigbee2MQTT fails to start/crashes runtime | Zigbee2MQTT for possible solutions

[2025-10-27 17:05:03] error: z2m: Exiting…

[2025-10-27 17:05:03] error: z2m: Error: Error: No such file or directory, cannot open /dev/ttyUSB0

The USB port file is not accessible. My dongle is referenced in /dev/serial/by-id

ls -l /dev/serial/by-id

usb-ITead_Sonoff_Zigbee_3.0_USB_Dongle_Plus_b2d173c5eea5ed1196f3f3a32981d5c7-if00-port0 → ../../ttyUSB0

Apparently the dongle is not correctly routed to the ttyUSB0 port!

I tried modifying the zigbee configuration file.

sudo nano /var/lib/gladysassistant/zigbee2mqtt/z2m/configuration.yaml

serial:

# port: /dev/ttyUSB0

port: /dev/serial/by-id/usb-ITead_Sonoff_Zigbee_3.0_USB_Dongle_Plus_b2d173c5eea5ed1196f3f3a32981d5c7-if00-port0

adapter: zstack

After restarting there is no improvement.

I also tested by flashing the dongle with:

CC1352P2_CC2652P_launchpad_coordinator_20240710

Or CC1352P2_CC2652P_launchpad_coordinator_20250321

Or by placing the dongle in another USB port, also tested with another identical dongle.

I also consulted the 3 similar threads that were suggested to me when creating this topic

Thanks in advance for your help.

2

Hi @RENON and welcome to Gladys :slight_smile:

I want to come back to that part — I advise against having an installation on an SD card; it’s a guaranteed recipe for data corruption and odd bugs that appear over time.

For the Raspberry Pi, be careful: there are often power issues with the Zigbee dongle, which can cause Zigbee2mqtt to restart or fail.

I don’t know if you read the « Raspberry Pi Users » section on the Zigbee2mqtt site; power issues are the primary cause of startup errors.

I recommend using a mini-PC with a fast SSD and a reliable integrated power supply.

You shouldn’t do that, because the port in configuration.yaml is the port inside the container; it has nothing to do with the port on the host machine. You should leave the base port, which is fixed.

In your case, I would first investigate power issues. If you have another machine on hand, it’s worth testing :slight_smile: